Blue Hour palette
Moonlit Meadow
From #005573 ink through #0080aa, #349cc7, #5aaacf to #77c7ed light, Moonlit Meadow is a analogous progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
cyanbluehourfive-stop
#005573
#0080aa
#349cc7
#5aaacf
#77c7ed
The generator opens with #005573 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.